Electricity 2

1. Circuit Symbols

2. Increasing Potential

3. Ohm's Law

4. Resistance and Length

5. Different Resistivities

Module Navigation

All Lessons

Hurrah, we come to the end of the module! We started by asking what the difference between a car and a TV remote battery was. We know that a car requires more current than a TV remote. To produce more current, the car battery must have a high potential difference.

So, the difference between the two batteries is in their potential difference (voltage). A TV remote battery has around 1.5 V potential difference. A car battery has about 12.5 V potential difference.